diff --git a/Other_Hackings/check_checksum.sh b/Other_Hackings/check_checksum.sh
index 3a46d8e..15edc9a 100755
--- a/Other_Hackings/check_checksum.sh
+++ b/Other_Hackings/check_checksum.sh
@@ -3,10 +3,10 @@
 # usage:
 # ./check_checksum.sh <file> <hash>
 
-filehash=`md5 -q $1`
+filehash=`sha1sum $1`
 
 echo "Checking file: $1, calculated as $filehash"
-echo "Using MD5 file: $2"
+echo "Using SHA1 file: $2"
 
 if [ $filehash != $2 ]
 then